. 2013 Jul 11;4:242. doi: 10.3389/fpls.2013.00242

Table 2.

Correlation matrix for functional traits of 12 North American temperate forest species grown in a common garden.

	D₃	SRL₃	BI₃
SRL₃	−0.83
BI₃	−0.64	0.66
RGR	0.05	0.07	0.07

Traits include belowground specific root length (SRL), diameter (D) and branching intensity (BI) as well as whole-plant life-strategy measures (i.e., relative growth rate – RGR). Fine root traits were measured on first three root orders (subscript “3”). Significant correlations appear in bold type (P<0.001 in all cases).